Is Acid Yellow 1 vegan?
Acid Yellow 1
Naphthol Yellow S is a synthetic organic dye derived from 1-naphthol. It was formerly used as a food colorant but was delisted in the United States in 1959; it is still used in some analytical and biological applications.
| Also known as | Acid Yellow 1, Disodium 5,7-dinitro-8-oxido-2- naphthalenesulfonate CI 1036, Disodium 5,7-dinitro-8-oxido-2- naphthalenesulfonate CI 1036, Disodium 5,7-Dinitro-8-Oxidonaphthalene-2-Sulphonate, Disodium 5,7-dinitro-8-oxidonaphthalene-2-sulphonate (CI 10316), Food Yellow 1, Sulfur Yellow S |
|---|---|
| INCI name | Acid Yellow 1 |
| CAS number | 846-70-8 |
| EC number | 212-690-2 |
| CI number | CI 10316 |
| CosIng ID | 32696 |
| Last reviewed | 3 June 2026 |
An ingredient is considered vegan if it contains no animal-derived components at any point in its production.
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